.theme-dropdown .dropdown-menu {
  position: static;
  display: block;
  margin-bottom: 20px;
}

.theme-showcase > p > .btn {
  margin: 5px 0;
}

.theme-showcase .navbar .container {
  width: auto;
}
.item:nth-child(1) {
  background-color: #777;
}
.item:nth-child(2) {
  background-color: #666;
}
.item:nth-child(3) {
  background-color: #555;
}